// InitJujuHome initializes the charm, environs/config and utils/ssh packages
// to use default paths based on the $JUJU_HOME or $HOME environment variables.
// This function should be called before calling NewConn or Conn.Deploy.
func InitJujuHome() error {
jujuHome := osenv.JujuHomeDir()
if jujuHome == "" {
return stderrors.New(
"cannot determine juju home, required environment variables are not set")
}
osenv.SetJujuHome(jujuHome)
charm.CacheDir = osenv.JujuHomePath("charmcache")
if err := ssh.LoadClientKeys(osenv.JujuHomePath("ssh")); err != nil {
return fmt.Errorf("cannot load ssh client keys: %v", err)
}
return nil
}
func (s *AuthKeysSuite) TestReadAuthorizedKeysClientKeys(c *gc.C) {
keydir := filepath.Join(s.dotssh, "juju")
err := ssh.LoadClientKeys(keydir) // auto-generates a key pair
c.Assert(err, gc.IsNil)
pubkeyFiles := ssh.PublicKeyFiles()
c.Assert(pubkeyFiles, gc.HasLen, 1)
data, err := ioutil.ReadFile(pubkeyFiles[0])
c.Assert(err, gc.IsNil)
prefix := strings.Trim(string(data), "\n") + "\n"
writeFile(c, filepath.Join(s.dotssh, "id_rsa.pub"), "id_rsa")
writeFile(c, filepath.Join(s.dotssh, "test.pub"), "test")
keys, err := config.ReadAuthorizedKeys("")
c.Assert(err, gc.IsNil)
c.Assert(keys, gc.Equals, prefix+"id_rsa\n")
keys, err = config.ReadAuthorizedKeys("test.pub")
c.Assert(err, gc.IsNil)
c.Assert(keys, gc.Equals, prefix+"test\n")
keys, err = config.ReadAuthorizedKeys("notthere.pub")
c.Assert(err, gc.IsNil)
c.Assert(keys, gc.Equals, prefix)
}